arnold



3 Sheets-Sheet 1.,

(No Model.)

J. ARNOLD. VETERINARY GASTRATING INSTRUMENT.

No. 891,107. Patented 0ct..16, 1888.

N. PETERS, nwwmho m nu. Wuhinglun ac.

3 Sheets-Sheet 2.

(No Model.)

. J. ARNOLD. VETERINARY 'GASTRATING INSTRUMENT.

Patented Oct. 16, 1888.

N. PETERs. Pmwulhn n her. wamnghm. D. C.

v Full Illll illllllllllllllldmkll UNITED STATES PATENT OFFICE.

JAMES ARNOLD, OF WEST SMITHFIELD, LONDON, ENGLAND.

VETERINARY CASTRATlNG-INSTRUMENT.

SPECIFICATION forming part of Letters Patent No. 391,107, dated October 16, 1888.

Application filed June 14, 1888. Serial No. 277,030.

To (6% whom it may concern:

Be it known that 1, JAMES ARNOLD, of the firm of Arnold & Sons, a subject of the Queen of Great Britain, residing at West Smithfield, in the city of London, England, surgical-instrument maker, haveinvented Improved (Jastrating-Instruments, of which the following is a specification.

This new or improved castratinginstrument is composed of two flattened steel blades with slots or guides in or on each of the same, the meeting edges being serrated. These two blades are hinged together at one end, and at the other they are provided with handles, which can be secured and brought tightly together, when required, by a sliding clip. In one slot there is a round-edged blade worked or propelled up and down by a screw contained within a conveniently-shaped handle for operating the said blade.

The accompanying drawings fully illustrate the manner in which my invent-ion is carried into effect.

Figure 1 is a side sectional elevation of my improved castratirig-instrument. Fig. 2 shows the sliding clip in end View. Fig. 3 is a plan view of one of the two flattened steel blades and showing the serrations thereon. Fig. 4 is a horizontal section through the line X Y of Fig. 1, and Fig. 5 is a section through the line X Y of same. Fig. 6 shows an elevation of the blade detached; and Fig. 7 is a general perspective view of the instrument, showing the same partially open, with the edge of the blade just visible between the flattened steel jaws.

The same letters of reference refer to like parts in all the figures.

A A are the flattened steel jaws or blades, preferably curved to of or about the. shape shown, and hinged together, as shown at B. Each of these blades is slotted, or guides are provided instead at the sides. The blades are best seen at Fig. 3, by which view the preferably-curved shape is also well seen and the edges thereof are serrated, as shown in the same figure.

a is a guide-pin, (shown by dotted lines in Fig. 1,) which, when the blades are brought (No model.)

together and into the position shown by Fig. 1, enters an aperture, 1). (Best seen at Fig. 3.) O O are the handles of the instrument, and along which the clip I (shown at Fig. 2) can slide, when required, either to keep the ban dles O O and blades A A tightly together or, by removing the clip, to allow them to open to the full extent, as shown by the dotted lines Fig. l, or otherwise. D is the round-edged cutting-blade, (shown separately at Fig. 6,) and which is inserted in the slot of the blade A or into guides at the side thereof, which blade D is propelled up and down by a screw, E, operated by turning 3 handle F and collar G, carried by the bracket H, secured to the blade A.

The operation of the instrument is as follows: \Vhen the jaws or blades A A of the eastrator are applied to the parts to be removed, they are tightly brought together by pulling the clip I (shown at Fig. 2) along the handles 0 0, whereby the vessels are very tightly held by the serrations and are constricted. The blade D is then screwed down throggh the slots in the blades A A and the parts are severed. The instrument is light, yet strong, and it effectually prevents hen|orrhagefrom the spermatie artery by severing it with its blunt and round-edged blade.

I claim-- 1. .he combination, in a castratiug-instrument, of the flattened, curved, and slotted blades A A, having serrated edges, the roundedged blade D, fitted to move in the blade A, and means, substantially as specified, for actuating the blade D, as set forth.

2. The combination, in a castrating-instrument, of the slotted and serrated blades A A, hinged together and having handles, the blade D, fitted to move in the blade A, the screw E, and handle F, the clip I, and a pin upon one of the blades to enter a hole in the other blade, substantially as set forth.

JAMES ARNOLD.

\Vitnesses:

WALTER J. SKERTEN,

l7 Gracechurch Street, London, E. O. E. S. BREWER,

33 Chancery Lane, London. 

